Support for insulators.



J. W. MALLOY & J, GILMAN.

SUPPORT FOR INSULATORS.

APPLICATION FlLED SEPT. 1. 1915.

1, 1 82, 1 9 1 Patented May 9, 1916.

QMMMS JOHN \MMHLLOY JOHN GummN UNITED STATES PATENT OFFICE.

JOHN W. MALLOY AND JOHN GILMAN, OF SIOUX FALLS, SOUTH DAKOTA.

SUPPORT- FOR INSULATORS.

Application filed September 1, 1915.

1 0 all whom it may concern Be it known that we, JOHN \V. MALLor and JonN GILMAN, citizens of the United States, residing at Sioux Falls. in the county of Minnehaha and State of South Dakota, have invented certain new and useful Improvements in Supports for Insulators, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in supports for insulators or the like; and it is an object of our invention to provide a device of this general character having novel and improved means whereby the tie wire for securing a conductor to the insulator is substantially entirely relieved from all strain.

Furthermore, it is an object of our invention to provide a device of this general character having novel and improved means whereby contraction or expansion of the conductor by the elements may be readily compensated for in order to maintain the conductor taut.

The invention consists in the details of construction and in the combination and arrangement of the several parts of our im proved. supports for insulators whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will be carefully defined in the appended claims.

In order that our invention may be the better understood, we will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a view in elevation of a sup port constructed in accordance with our invention and in applied position, the cross arm, to which it is shown applied, being indicated by section; and Fig. 2 is a sectional view taken substantially on the line 22 of Fig. 1.

As disclosed in the accompanying draw ings, 1 denotes an elongated member having secured to its under surface at substantially its longitudinal center a bracket 2 or the like to afford a convenient and effective means whereby the member 1 may be secured to a cross arm C or other support and whereby said member 1 is disposed in sub- Specification of Letters Patent.

Patented May 9, 1916.

Serial No. 48,543.

stantially the same general direction as the conductor with which it is adapted to coact.

The end portions of the member 1 are turned upwardly, as indicated at 3 and 4-, at substantially right angles to afford uprights, the upright 3 being provided w'th an opening 5 while the upri ht 4: is provided with the laterally disposed open slot 7. The upright & is provided adjacent the open end of the slot 7 with a longitudinally directed opening 8 intersecting said slot 7 and through which is adapted to be disposed a key 9 or the like to afford a closure means for said open end of the slot 7. The opening 5 and the recess or slot 7 are angular in cross section, for a purpose which will hereinafter be self-evident.

6 denotes an elongated member of a length in excess of the member 1 and also angular in cross section and adapted to have its opposite extremities disposed through the opening 5 and within the slot 7 whereby it will be readily perceived that said member 6 is maintained against axial rotation. At substantially its longitudinal center, the member 6 is provided with an enlargement or head 10 affording the shoulders 11 with each of which is engaged an extremity of an expansible member 12, herein disclosed as a conventional coil spring, surrounding the member 6, the opposite extremity of said expansible member bearing against and coact ing with an upright 3 or at. The expansible members 12 are of the same tension whereby i will be perceived that the enlargement or head 10 will be normally maintained at substantially the longitudinal center of the member 1. It will also be readily perceived that the open slot 7 affords a medium whereby the member 6 may be readily and conveniently applied in operative position and the key 9 affords means whereby said member 6 is maintained in operative position. Projecting upwardly from the head or enlargement 10 is a post 14 with which is suitably engaged the insulator I, and to which is adapted to be secured the conductor V preferably through the medium of the conventional tie wire T.

In view of the foregoing, when considered in connection with the drawings forming part hereof, the expansible members 12 serve to reduce to a minimum the strain imposed upon the tie wire T and to readily compensate for the expansion or contraction of the conductor W under the influence of the elements or from other causes.

From the foregoing description, it is thought to be obvious that a support for insulators or the like constructed in accordance with our invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and 'it will also is obvious that our invention is susceptible of some change and modification without material departure from the principles anl spirit thereofiand for this reason we do not wish to be understood as limiting ourselves to the precise arrangement and formation-of the several parts herein shown in carrying out our invention in practice.

We claim: 7 1. In combination with a line wire, a insulator support comprising a member extending in the same general direction -as the line wire and :provided with securing means and having uprights adjacent its opposite extremities, a second elongated memberof a length in excess of the first named member and supported by the uprights for sliding movement, an insulator post :projecting from an intermediate portion of the second named elongated @member, and expansilole members coacting with thesecond member and the uprights for normally maintaining the post at substantially the longitudinal center :of the first named member.

12. In combination with aline -wire, an insulator support comprising an elongated member extending in the same general direction asthe line wire and provided with engaging :means, uprights carried'by said member adjacent the opposite extremities thereof,one-of said uprights being provided with an opening and the second of said uprights with an open ended slot, removable uneans for closing the open end of said slot, an elongated member of a length in excess of the first named member and disposed through the 0P6I11I1g and slot of "the uprights, aninsulating=post-carried by' -said second member intermediate the length thereof, and yieldable means coaeting with said second named member for maintaining the insu'la'to'r 'post of the second named member normally at a predetermined point longitudinally of the first named member.

3. In combination with a line wire, an insulator support comprising an elongated member extending in -the same general direction as the line wire and provided with thereof, a second member slidably engaged with said uprights and of a length in excess of the length of the first named member, the intermediate portion of said second member being enlarged to afiord shoulders, expansible members interposed between the shoulders of the second member and the uprights, and an insulator post projecting from the second member at a point intermediate the shoulders.

4:. In combination with a cross arm and a line wire, an insulator support comprising a member "extending in =-the same general direction as the line'wireand provided at substantially its longitudinal-center with a dependingbracket bridging the cross arm-and secured thereto and having uprights adj a-' cent its opposite extremities, a second clon gated member of a length in excess of the first named member and supported by the uprights for sliding movement, an insulator post projecting from an intermediate portion of thesecond named elongated :member, and expansible members coacting with -the second member and the uprights for :normally maintaining the post at substantially the longitudinal center of the first named member.

5. In combination with a line wire,:an'insulator support comprising an elongated member extending in the same general clirection as the line wire and provided with engaging means, upright-s carried by said member :adjacent the opposite extremities thereof, one of said uprights beingtprovided with anopening and thesecondof said uprights with an open ended slot, aremovable means for'iclosin'g the open end-of said slot, an-elongated memberofadength in excess of the first named member and disposed through the opening and slot of the uprights, said opening andopenended slot of the uprights being angular in cross section and the elongated member being also angu'lar incross section whereby said angular member :is held against rotary movement, an insulating post carried by said second member intermediate the length thereof, and yielda'ble means coacting with said second named member for maintaining the insulator post of the second named member :normally at a predetermined point longitudi na'lly of thefirstnamed member.

In testimony whereof we hereunto aflix our signatures in the presence of two witnesses.

JOHN W. MAL'LOY. JOHN GILMAN. Witnesses:

JosnP-H Kara-M, N. A. Brown.

0091:: o! thispa'tent may he =:obtaineddim:ifiveicents each, by addressing :the Commissioner 10! Eatents,

' 7Wesliington, *D; G; 

